|Número de publicación||US5997115 A|
|Tipo de publicación||Concesión|
|Número de solicitud||US 08/947,006|
|Fecha de publicación||7 Dic 1999|
|Fecha de presentación||8 Oct 1997|
|Fecha de prioridad||8 Oct 1997|
|Número de publicación||08947006, 947006, US 5997115 A, US 5997115A, US-A-5997115, US5997115 A, US5997115A|
|Inventores||Timothy Radloff, Stephen Cook|
|Cesionario original||Dell U.S.A., L.P.|
|Exportar cita||BiBTeX, EndNote, RefMan|
|Citas de patentes (11), Otras citas (1), Citada por (64), Clasificaciones (14), Eventos legales (7)|
|Enlaces externos: USPTO, Cesión de USPTO, Espacenet|
The disclosures herein relate generally to computer chassis and more particularly to an access panel attached to the chassis and including a single point release mechanism for unlatching the panel from the chassis.
A typical computer enclosure is usually made up of a chassis, one or more covers, and a bezel, which is the front cosmetic cover of the computer system. There are many combinations of these elements in current computer hardware components. In any enclosure, the ease with which the covers and the bezel can be assembled and removed are important for manufacturability, serviceability and customer satisfaction.
Many computers have covers and bezels which are fastened in place with hardware such as screws. An immediate gain in manufacturability, serviceability and customer satisfaction can be gained by using integral snaps which are easily engaged and released. The main benefit is that a tool is not needed to gain access to the internal components or bays of the computer. There are many computer housings which utilize snaps and hooks in the bezel and covers to provide these added benefits. However, not every enclosure can be easily outfitted with such devices. Due to a variety of issues with how the covers and bezel must be assembled or removed from the system and how the components must be integrated with the chassis, the possibility of adding snap-on/snap-off functionality is limited.
In accordance with one attempted solution to the above-mentioned problem, a tower unit housing for a computer system has been provided including a rectangular box-like chassis which receives a front bezel, an L-shaped hood to cover the top and one side of the chassis and a side member to cover the other side of the chassis. The chassis includes a security tab which is aligned with a hood security tab and a side cover security tab when the hood and side cover are installed on the chassis, such that openings in the tabs can receive a single lock to lock the entire unit together. The front bezel includes its own security tab which extends into a pin connection inside of the chassis such that the pin connection between the bezel and the chassis is hidden by the side cover when the side cover and L-shaped hood are installed on the chassis. In this manner, a single lock can secure the front bezel and the L-shaped hood and the side cover from unauthorized disassembly.
Another enclosure is characterized by a sheet-metal chassis, two cosmetic cover panels and a separate front panel. Each cover panel covers half of the chassis top and one of the sides. The bezel covers the front of the chassis and has openings for the accessible drive bays as well as buttons for interfacing with the computer control panel. To save shipping costs and reduce the time and cost of assembly in the manufacturing process, the right side cover of the chassis is designed to be shipped as part of an assembly with the chassis. The fixed nature of the right side cover combined with some of the internal bracketry of the chassis create accessibility problems to many points in the chassis.
The limited accessibility discussed above precludes using a traditional approach for snapping the bezel in place during assembly and removing the bezel for service or upgrades by a customer. The problem is magnified by the specifics of the bezel tooling which greatly reduces the design flexibility. The problem is that of providing a method for reliably securing the bezel by having multiple closure points, yet being able to release the bezel from an easily accessible location without the use of special tools or the need for specialized knowledge of the closure detail.
Therefore, what is needed is a computer chassis including an access panel having multiple interlocks attaching the panel to the chassis and a single release operably connected to release the interlocks from the chassis.
One embodiment, accordingly, provides a panel release device which engages a panel at multiple interlock positions and can release the panel by activating the device with pressure applied at a single point. To this end, a computer system includes a latch adapted to be mounted on a computer chassis for retaining and releasing a chassis cover panel. The latch includes a main body, a plurality of latch members extending from the body, a single point pressure member on the body, and support members on the body maintaining the single point pressure member and the latch members in a raised position relative to the chassis.
A principal advantage of this embodiment is that the latch stabilizes the interlocking of a chassis panel, such as a bezel, to the chassis due to the manner in which the latch engages the bezel. For release of the bezel, pressure applied to the single point pressure member, simultaneously disengages multiple latch points.
FIG. 1 is a view illustrating an embodiment of a computer system.
FIG. 2 is an isometric view illustrating an embodiment of a chassis used in a computer system.
FIG. 3 is a partial isometric view illustrating an embodiment of a chassis having a bezel disengaged from a latching device.
FIG. 4 is a partial isometric view illustrating an embodiment of a chassis having a bezel engaged with the latching device.
FIG. 5 is an isometric view illustrating an embodiment of the latching device mounted on a chassis surface.
FIG. 6 is a partial isometric view illustrating an embodiment of the latching device mounted on the chassis.
In one embodiment computer system 41, FIG. 1, includes a microprocessor 11 which is connected to a bus 13. Bus 13 serves as a connection between microprocessor 11 and other components of computer system 41. An input device 15 is coupled to microprocessor 11 to provide input to microprocessor 11. Examples of input devices include keyboards, touchscreens, and pointing devices such as mouses, trackballs and trackpads. Programs and data are stored on a mass storage device 17 which is coupled to microprocessor 11. Mass storage devices include such devices as hard disks, optical disks, magneto-optical drives, floppy drives and the like. Computer system 41 further includes a display 19 which is coupled to microprocessor 11 by a video controller 21. A system memory 23 is coupled to microprocessor 11 to provide the microprocessor with fast storage to facilitate execution of computer programs by microprocessor 11. It should be understood that other busses and intermediate circuits can be deployed between the components described above and microprocessor 11 to facilitate interconnection between the components and the microprocessor.
Referring to FIG. 2, a chassis is generally designated 10 and is used to store many components of computer system 41 including, but not limited to, mass storage device 17 such as a disk drive, which is accessible through a drive bay opening 12 in a bezel or front cover panel 14. Chassis 10 also includes a first cover panel 16, which is substantially identical to a second cover panel, which has been removed and is therefore not shown. The first cover panel 16 includes an L-shaped panel having a top portion 30, which covers one-half of a top surface 18 of the chassis 10, and a side portion 25 which covers one of a pair of opposed side surfaces 20 of chassis 10. Similarly, the second cover panel which is not shown, includes a top portion and a side portion. Bezel 14 is pivotally attached to a chassis front surface 22 at a first end 24 and is provided, at a second end 26 to receive a latch (discussed later) for securing bezel 14 to the front surface 22.
Referring to FIGS. 3 and 4, it can be seen that a partially shown latch 28 is mounted on top surface 18 of chassis 10. Latch 28 extends toward bezel 14 so that the bezel 14, shown in an open position P1, FIG. 3, can receive latch 28 at a pair of extended lip portions 32 of bezel 14 for maintaining bezel 14 in a closed position P2, FIG. 4. In the open position P1, FIG. 3, front chassis surface 22 is exposed and accessible, whereas in closed position P2, front chassis surface 22 is covered, FIG. 4, and access through drive bay opening 12 is required, see FIG. 3.
Referring to FIG. 5, latch 28 is illustrated and includes a main body 34, substantially planar and formed of a suitable, flexible synthetic material such as PC-ABS. Latch 28 includes a pair of latch members 36a and 36b, each extending from an opposite end 34a, 34b, respectively of main body 34. Actually, latch members 36a, 36b are angularly disposed relative to the plane of main body 34. Latch members 36a, 36b are spaced apart by the approximate end-to-end dimension of main body 34 and each includes a hook 36c, 36d, respectively. A single point pressure member 38 is provided on main body 34. Support members in the form of a pair of cantilever arms 40a, 40b, extend outwardly from pressure member 38 in opposite directions toward opposite ends 34a, 34b, respectively. A pair of leg extensions 42a, 42b each extend from a free end 44a, 44b of arms 40a, 40b, respectively. Leg extensions 42a, 42b, extend perpendicular to a longitudinal axis of each respective cantilever arm 40a, 40b. Main body 34 includes a plurality of reinforcing ribs 46, which add strength to main body 34 but permit member 34 to remain flexible. Means such as a plurality of detents 48, are provided in an edge 70 of main body 34. Also provided is a wedge 54a on latch member 36a and a wedge 54b on latch member 36b. Main body 34 also includes an end portion 58a on end 34a and an end portion 58b on end 34b.
In FIGS. 5 and 6, latch 28 is mounted on top chassis surface 18. Latch members 36a and 36b extend through a pair of apertures 60a, 60b, respectively formed in chassis surface 18. Wedges 54a, 54b protrude through apertures 60a, 60b, respectively, and limit movement of main body 34 relative to chassis surface 18. A plurality of clamps 62, FIG. 6, extend from chassis surface 18 and engage detents 48 for further limiting movement of and retaining main body 34 and on chassis surface 18. Leg extensions 42a, 42b, FIG. 5, engage pads 64a, 64b, respectively, on chassis surface 18, thus biasing the main body 34, including the single point pressure member 38 and latch members 36a, 36b in a raised position L1 relative to chassis surface 18. When pressure is applied to single point pressure member 38, as indicated by a directional arrow 38a, cantilever arms 40a, 40b deflect to permit single point pressure member 38 to move toward top chassis surface 18 to a position L2 indicated in phantom in FIG. 5. Concurrently, main body member 34 pivots about edge 70 which permits latch members 36a, 36b to deflect to position L2 which is sufficient to release hooks 36c, 36d from lip portions 32 of bezel 14 (see FIG. 3).
In operation, reinforcing ribs 46, FIG. 5, provide strength to optimize rotary motion of latch members 36a, 36b when single point pressure member 38 is pressed. Hooks 36c, 36d interface with lip portions 32, FIG. 3, of bezel 14 to retain and stabilize bezel 14 in place on chassis 10. Clamps 62 and wedges 54a, 54b, FIG. 5, limit movement of latch 28 toward and away, respectively, from bezel 14. Detents 48 mate with clamps 62 along edge 70 of main body 34 to create a pivot or hinge axis for rotation of latch 28.
Bezel 14 is installed by pivotally attaching first end 24, FIG. 2, to a portion of surface 22 of chassis 10 and rotating bezel 14 toward front surface 22. When bezel 14 mates with front chassis surface 22, hooks 36c, 36d are urged downwardly and then snap into engagement with lip portions 32. The fact that hooks 36c, 36d are spaced apart provides stability to the interlock between latch 28 and bezel 14, and helps to control the cosmetics by maintaining a consistent interface between bezel 14 and chassis 10.
Bezel 14, FIG. 2, is removed by pressing single point pressure member 38 which acts against the bias of cantilever arms 40a, 40b, FIG. 5, and rotates main body 34, including the spaced apart latch members 36a, 36b, out of engagement with lip portions 32 of bezel 14, FIG. 2, and allows bezel 14 to be rotated away from front chassis surface 22. Also, the first cover panel 16 need not be removed from chassis 10 to provide access to single point pressure member 38. In addition, only one hand is required to release latch 28, thus giving freedom to the other hand to remove bezel 14.
As it can be seen, the principal advantages of these embodiments are that a mechanism is provided to include multiple interlock points which are actuated by a single release point. The latch is a low cost part that is easy to manufacture, install and implement as part of a chassis assembly, as well as providing quick removal and access for service. The latch stabilizes the interlocking of the bezel to the chassis due to the manner in which the multiple latch points engage the bezel. For release of the bezel, pressure applied to the single point pressure member simultaneously disengages the multiple latch points.
Although illustrative embodiments have been shown and described, a wide range of modifications, change and substitution is contemplated in the foregoing disclosure and in some instances, some features of the embodiments may be employed without a corresponding use of other features. Accordingly, it is appropriate that the appended claims be construed broadly and in a manner consistent with the scope of the embodiments disclosed herein.
|Patente citada||Fecha de presentación||Fecha de publicación||Solicitante||Título|
|US4730731 *||4 Nov 1986||15 Mar 1988||Lumelite Corporation||Child-resistant container|
|US4909579 *||28 Oct 1988||20 Mar 1990||Enlight Corporation||Casing for console (CPU) of personal computer with easy opening and locking means|
|US4938513 *||25 Oct 1989||3 Jul 1990||Acry Fab, Inc.||Flexible latch|
|US5253142 *||19 Sep 1991||12 Oct 1993||Cal-Comp Electronics, Inc.||Body structure for a pocket computer having a fastener with multiple spaced apart elements|
|US5397176 *||30 Jun 1994||14 Mar 1995||Compaq Computer Corporation||Lockable computer tower unit housing|
|US5575546 *||21 Jul 1995||19 Nov 1996||Dell U.S.A., L.P.||Apparatus for retention of computer expansion cards and filler panels|
|US5577779 *||22 Dic 1994||26 Nov 1996||Yazaki Corporation||Snap fit lock with release feature|
|US5580107 *||25 Sep 1995||3 Dic 1996||Dell U.S.A., L.P.||Hidden latch hook for portable personal computer and the like|
|US5601349 *||25 Jul 1995||11 Feb 1997||Dell U.S.A., Lp||Captive latch mechanism for use with an expansion card cage in a personal computer|
|US5650911 *||24 Oct 1995||22 Jul 1997||Dell U.S.A., L.P.||Apparatus for the expansion of computer chassis input/output connections|
|US5825626 *||7 Ene 1997||20 Oct 1998||Apple Computer, Inc.||Personal computer having lockable access panel|
|1||*||Patent Application No. 08/698,817; Entitled: Computer Cabinet Latching Mechanism; Inventor: Erica Scholder.|
|Patente citante||Fecha de presentación||Fecha de publicación||Solicitante||Título|
|US6053586 *||24 Oct 1997||25 Abr 2000||Dell U.S.A., L.P.||Computer access panel having a biased cover latching mechanism and method|
|US6161909 *||26 Ago 1999||19 Dic 2000||First International Computer, Inc.||Computer mainframe case and side cover arrangement|
|US6229696 *||10 Jun 1999||8 May 2001||Hon Hai Precisin Ind. Co., Ltd.||Movable frame for retaining a component in a computer enclosure|
|US6262888 *||30 Jun 1999||17 Jul 2001||Dell Usa, L.P.||Impact damping system for peripheral device|
|US6288336 *||29 Dic 1999||11 Sep 2001||Hon Hai Precision Ind. Co., Ltd.||Computer bezel incorporating a plurality of fasteners|
|US6375287 *||18 Jul 2000||23 Abr 2002||Vincent Lai||Retaining device for a side cover of a computer casing|
|US6466433||19 Abr 2000||15 Oct 2002||Hewlett-Packard Company||Computer with modular power supply assembly in separate bay|
|US6522547 *||19 Abr 2000||18 Feb 2003||Hewlett-Packard Company||Computers with modular components|
|US6529371 *||13 Ago 2001||4 Mar 2003||Hon Haiprecision Ind. Co., Ltd.||Bezel fastening structure for computer enclosure|
|US6535379 *||1 Jun 2000||18 Mar 2003||Hewlett-Packard Company||Computer with exchangeable front bezel|
|US6623049 *||21 Dic 2001||23 Sep 2003||Motorola, Inc.||Battery latch|
|US6628512||30 Abr 2001||30 Sep 2003||Hewlett-Packard Development Company, L.P.||Computer enclosure having lockable access panels|
|US6637847 *||28 Feb 2002||28 Oct 2003||International Business Machines Corporation||Bezel release latch|
|US6715850 *||26 May 2000||6 Abr 2004||Hewlett-Packard Development Company, L.P.||Computer with removable panels|
|US6738255 *||8 Jul 2002||18 May 2004||Hon Hai Precision Ind. Co., Ltd.||Computer enclosure with pivoting front panel|
|US6808239 *||18 Abr 2000||26 Oct 2004||Siemens Aktiengesellschaft||Casing|
|US6816391||1 Nov 2001||9 Nov 2004||Gateway, Inc.||Tool-less access cover and EMI tight access door|
|US6899407 *||21 Abr 2004||31 May 2005||In Win Development, Inc.||Device for quickly detaching and reassembling the frontmask of a computer casing|
|US6924975 *||13 Ago 2003||2 Ago 2005||In Win Development, Inc.||Computer case with side panel clip fastening|
|US6932447 *||10 Dic 2001||23 Ago 2005||Hon Hai Precision Ind. Co., Ltd.||Computer enclosure with locking bar|
|US7021682 *||20 Jun 2003||4 Abr 2006||Gateway Inc.||Chassis locking bar|
|US7082036 *||25 Feb 2005||25 Jul 2006||Hon Hai Precision Industry Co., Ltd.||Bezel mounting assembly|
|US7095609||1 Abr 2003||22 Ago 2006||Gateway Inc.||Robust intuitive latching mechanism|
|US7232193 *||25 May 2004||19 Jun 2007||Emc Corporation||Locking mechanism for securing the bezel of an electronics enclosure to a rack structure|
|US7325846||7 May 2003||5 Feb 2008||Hewlett-Packard Development Company, L.P.||Low profile mechanical assist hood latch|
|US7404610 *||5 Ago 2004||29 Jul 2008||Lenovo (Singapore) Pte. Ltd.||Bezel release mechanism|
|US7483263 *||29 Jul 2005||27 Ene 2009||Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd.||Computer enclosure|
|US7484818 *||17 Mar 2004||3 Feb 2009||Shuttle Inc.||Computer chassis frame support|
|US7634782 *||20 Ene 2005||15 Dic 2009||Hewlett-Packard Development Company, L.P.||Removable front panel for a computer hardware chassis|
|US7675754||20 Sep 2007||9 Mar 2010||International Business Machines Corporation||Mechanically-assisted insertion and removal of modular device|
|US7758133 *||23 Jun 2006||20 Jul 2010||Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd.||Mounting assembly for side panel of computer enclosure|
|US7843687 *||31 Jul 2007||30 Nov 2010||Apple Inc.||Latching mechanism|
|US7855881 *||12 Sep 2007||21 Dic 2010||Hon Hai Precision Industry Co., Ltd.||Mounting apparatus for back panel|
|US8054623||18 Nov 2010||8 Nov 2011||Apple Inc.||Latching mechanism|
|US8182000 *||22 Jul 2009||22 May 2012||Automotive Components Holdings, Llc||Integrated dual pawl latching mechanism|
|US8456814 *||28 Feb 2011||4 Jun 2013||Hubbell Incorporated||Enclosure for an electrical system|
|US20020185944 *||28 Dic 2001||12 Dic 2002||Feng-Ming Chen||Detachment and assembly structure of master computer's faceplate|
|US20030107304 *||10 Dic 2001||12 Jun 2003||Chen Yun Lung||Computer enclosure with locking bar|
|US20030202319 *||8 Jul 2002||30 Oct 2003||Yun-Lung Chen||Computer enclosure with pivoting front panel|
|US20030210515 *||5 May 2003||13 Nov 2003||Gilbert Rahmouni||Latch and release mechanism for a panel of a computer hardware device|
|US20040196623 *||1 Abr 2003||7 Oct 2004||Gateway, Inc.||Robust intuitive latching mechanism|
|US20040240166 *||28 Ene 2004||2 Dic 2004||Yi-Lung Kuo||Computer face plate apparatus|
|US20040246671 *||17 Mar 2004||9 Dic 2004||Stan Cheng||Computer chassis frame support|
|US20040252449 *||29 Ago 2003||16 Dic 2004||Kevin Lee||Closing plate structure for front cover of computer case|
|US20040256864 *||20 Jun 2003||23 Dic 2004||Gateway, Inc.||Chassis locking bar|
|US20050036280 *||13 Ago 2003||17 Feb 2005||In Win Development, Inc.||Computer case with side panel clip fastening|
|US20050040740 *||23 Ago 2004||24 Feb 2005||Suk-Ju Yun||Computer|
|US20050207111 *||25 Feb 2005||22 Sep 2005||Hon Hai Precision Industry Co., Ltd.||Bezel mounting assembly|
|US20050264142 *||25 May 2004||1 Dic 2005||Emc Corporation||Locking mechanism for securing the bezel of an electronics enclosure to a rack structure|
|US20060028103 *||5 Ago 2004||9 Feb 2006||Smith Peter A||Bezel release mechanism|
|US20060133023 *||29 Jul 2005||22 Jun 2006||Hon Hai Precision Industry Co., Ltd.||Computer enclosure|
|US20060161937 *||20 Ene 2005||20 Jul 2006||Kai Ng||Removable front panel for a computer hardware chassis|
|US20070044408 *||31 Mar 2006||1 Mar 2007||Inventec Corporation||Panel fixing structure|
|US20070159800 *||10 Ene 2007||12 Jul 2007||Funai Electric Co., Ltd.||Cabinet for electric apparatus|
|US20070222347 *||23 Jun 2006||27 Sep 2007||Hon Hai Precision Industry Co., Ltd.||Mounting assembly for side panel of computer enclosure|
|US20090034220 *||31 Jul 2007||5 Feb 2009||Ricardo Mariano||Latching mechanism|
|US20090040744 *||12 Sep 2007||12 Feb 2009||Hon Hai Precision Industry Co., Ltd.||Mounting apparatus for back panel|
|US20090080165 *||20 Sep 2007||26 Mar 2009||International Business Machines Corporation||Mechanically-Assisted Insertion and Removal of Modular Device|
|US20110018286 *||22 Jul 2009||27 Ene 2011||Mitchell Jr Daniel||Integrated Dual Pawl Latching Mechanism|
|US20110058333 *||18 Nov 2010||10 Mar 2011||Apple Inc.||Latching mechanism|
|US20110266278 *||3 Nov 2011||Hon Hai Precision Industry Co., Ltd.||Device with chassis|
|US20120218685 *||30 Ago 2012||Maysteel Llc||Enclosure for an electrical system|
|EP1164459A2 *||1 Jun 2001||19 Dic 2001||Hewlett-Packard Company||Computer panel member|
|WO2014137436A1 *||11 Dic 2013||12 Sep 2014||Kavounas Gregory T||Personal computer system with compartment for long-term storage of associated object and methods|
|Clasificación de EE.UU.||312/222, 292/19, 292/DIG.38, 312/223.2, 292/91|
|Clasificación internacional||G06F1/18, E05C19/06|
|Clasificación cooperativa||Y10T292/082, Y10T292/0907, Y10S292/38, E05C19/06, G06F1/181|
|Clasificación europea||E05C19/06, G06F1/18E|
|8 Oct 1997||AS||Assignment|
Owner name: DELL COMPUTER CORPORATION, TEXAS
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:RADLOFF, TIMOTHY;COOK, STEPHEN;REEL/FRAME:008844/0813
Effective date: 19970930
|21 Ene 1999||AS||Assignment|
Owner name: DELL U.S.A., L.P., TEXAS
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:RADLOFF, TIMOTHY;COOK, STEPHEN;REEL/FRAME:009706/0375
Effective date: 19970930
|5 Nov 2002||CC||Certificate of correction|
|6 Jun 2003||FPAY||Fee payment|
Year of fee payment: 4
|7 Jun 2007||FPAY||Fee payment|
Year of fee payment: 8
|7 Jun 2011||FPAY||Fee payment|
Year of fee payment: 12
|2 Ene 2014||AS||Assignment|
Owner name: BANK OF AMERICA, N.A., AS COLLATERAL AGENT, NORTH
Free format text: PATENT SECURITY AGREEMENT (TERM LOAN);ASSIGNORS:DELL INC.;APPASSURE SOFTWARE, INC.;ASAP SOFTWARE EXPRESS, INC.;AND OTHERS;REEL/FRAME:031899/0261
Effective date: 20131029
Owner name: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT, TE
Free format text: PATENT SECURITY AGREEMENT (ABL);ASSIGNORS:DELL INC.;APPASSURE SOFTWARE, INC.;ASAP SOFTWARE EXPRESS,INC.;AND OTHERS;REEL/FRAME:031898/0001
Effective date: 20131029
Owner name: BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS FI
Free format text: PATENT SECURITY AGREEMENT (NOTES);ASSIGNORS:APPASSURE SOFTWARE, INC.;ASAP SOFTWARE EXPRESS, INC.;BOOMI, INC.;AND OTHERS;REEL/FRAME:031897/0348
Effective date: 20131029